Detonating fuse.



1. B1. DES ROSIERS.

DE'TON FUSE I APPLICATION FEB. 26, 1 916. I I I v Patented Dec.191

' Aitof 6 llllllTElU CD i in e -Wu seiner JOHN B. DES ltOSZEES, OFPROVIDENCE, 31101333 ISlh-EMND.

DIETONATIII'G Specification of Letters Patent.

i a'tenird lib-er.

Application filed February 26 1916. Serial No. 80,566.,

Fuses, of which the following is a speeifi cation.

The object of my invention is to provide a simple and eiiicient devicefor detonating the explosive charge of bombs, projectiles, torpedoes,mines or similar devices at given depths below the surface of water orafter definite periods of inmiersion.

My device is' simple, easy and inexpensive to manufacture and accurateand ellicient in action.

In the drawings, Figure 1 is a cross section of my device as embodied ina fuse plug of the usual type; Fig. 2 is an end view of my deviceshowing indicator; Fi 3 is a near View of the inside of the needlevalve; Fig. 4%. is a section of Fig. l at its center.

Y'To'furtlier describe a form of my invention which Ihave foundadvantageous, 13 is a cylindrical body of brass or other suitablematerial which maybe forced into the Well of a fuse plug of the typeusually ap plied to projectiles. This cylinder has an enlarged portion 9at its outer end for the double purpose of adding strengthand g] V- inga surface for the indicator dial 27. Slidries the indicator 5.

ably "minted in this bodyis an inner body 10 ads ed to slide inside thecylinder 13 but With a high degree of friction. The range of motion ofthis inner cylinder or body is controlled by a pin 12, secured in thecylinder 13 and projecting into a slot 11 in the inner cylinder 10. Bymeans of a right angle in this slot, the inner cylinder 10 may be turnedseveral degrees and locked. in that position. The pin 12 and the slot11, with its right angle extension, acting as a, bayonet catcln-wellknown in the art. The outer extremity of this body 10 is taperedto'incld'se a small chamber 7 g the outside of this extension isthreaded and on it revolves check nut 6 and the valve cap 2 which. car-The end of the cylinder 10 is hroughttoa finely tapered point 3, whichpoint projects through a tapered hole 25 in the valve cap 2. The cap 2and the tapered point 3 thus operate as a'needle valve and moistureentering around the point 3 is conducted into the chamber 7 through theholes 26. The interior end of 'is then plated on Us *viinder 10 isthreaded to receive the ary firing device 153. of the outside cylinder19 contracted at right angles as at 20 and a re' \ard pro= jection 2.1.,is threaded or otherwis adapted to receive an tfliiI-QliOl ci in cup *2I which cap has an opening in is alter. Between the end 'oi theauxiliary iii device 1' ml the annular formed by A 1 .1".) .-.'-f-\-i,or t 1e en su c 0 HM or u; a recess is ounce as at 17, to receive acircular percussion cap-l8.

Having now briefly described the construction of my device, i -roperation is as follows: Into the cavity 7 at the head of the innercylinder 10, a co1i1 'mund is placed which can be exploded loythe actionof water. There are many compounds known. to the chemical art,especially potash combination which will do this. This cavity is thenclosed by a thin Wad 1i preferably 01" shellached paper which rests onthe annular i'he inward end.

the contraction seat formed by the contraction of the chain- I her 7.The chamber 8 is then tilled with black gun-pmvder or other suitableexplosive and another \vad 15 is used to close it. The auxiliary firingdevice 16 is then cured home, holding the wad in place. The wild 23 isthen placed over the rear end of the outer cylinder 13 and thecap ""3secured in place to hold it. The perm on cap seat. the cliainlu. 1Sfilled with gunpowder or similar explosive and the inner cj-lindZ-n: 10is then insertedto its proper position where it is held by theinsertionand u isetting oi the pin 1:; 1n the slot 11. The check nut and thevalve cap are then putin place and the entire device now carried in theouter cylinder 13, is placed in the cavity of the fuse plug of the usualform or in any position so that its inner end communicates with the mainexplosive charge 24..

My device is now ieri'ectly safe for storage and transportation. Tihenit isdesirable touse the. same, the interior cylinder 10 is turned sothat the pin 12 can slide freely in the longitudinal slot 11 The valyecap 2 is then turned to its proper setting and locked by the check nutWhen the projectile or mine, hearing this fuseis submerged water inminute quantities passes in between the seat and the point 3 of theneedle valve and reaches the explosive charge in the chamber 7 theexplosion is thereupon communicated to the charges in He chamber ti actss a ltmini'ner, cri'lshing the cir percussion cap 18 between it and theanvil 20, formed in the body of the outer l'lTl(iQl.' 133. The explosionof this percus m ea}: con nunicated to the explosive in l9, mie'cedotonating the maiden:-

' in the usual manner.

he form of this device may neee sary to adapt it to mines, sublines,bombs, proiectiles and other of LXPlOSlVG implement. aring; thus brieflydescribed the operaoi' an improved form of my device, I

c-.l.-ii:n-

3. in a detcnating fuse, a body, an inner lmci'v "1 slidably' nnmntedtherein, a chamber ui '1- hody, means for admitting swans torcontrolling flow of such I body slidabl v mounted therein, a chamber insaid inner body, a valve on the end of said chamber and means forregulatingthe ad mission oi watt-r to said chamber by said valve.

i. la a. detonatio fuse, a body, an inner an y siidably mounted therein,a chamber in said inner body, a head on said inner valve in said headand means to oration of said valve.-

. iting fuse, a body, an inner body slidahl v in n'11'.=ted therein,means to control the s. ,ig; amt-ion of said inner body, a ulxairber insaid inner body and moans iu' control the admission of minute quantitiesoi liquid to said chamber.

s the inner cylinder to be liary firing device 16 are quantities ofliquid to said chamber .1. in a (hatonating fuse, a body, an inner 5, Ina detonating fuse, a body, an inner body shdably mounted therein, meansfor controlling the motion of said inner body,

body slidably mounted therein, a chamber in said bod y, means forcontrolling the admission of liquid to said chamber, means forcontrolling the motion of said interior body, an enlargement of saidinterior body, a circular interior seat on said outerbody adapted toreceive the thrust of saidsliding body, a chamber connectingwith saidinterior seat, and means for closing the end of said chamber. i

7! In a detonating' fuse, a body, an inner body slidably mountedtherein, a chamber in said inner body adapted to hold explosives, meansfor dividing explosives in said chamber, means for admitting liquid tosaid chamber, means for controlling the admission of said liquid, meansfor locking said controlling device, means for controlling the motion ofsaid interior body, a striking member on the rearward end of saidinterior body, a circular interior seat on said outer-body adapted toreceive the blow of said striking member, a recess between said strikingmember and said interior, circular seat, a chamber connecting with saidinterior, circular seat adapted for holding explosives and-ineans forclosing the end of said chamber.

In witness whereof, I have set my hand in the presence of two Witnesses.

JOHN B. DES ROSIERS.

Witnesses: i

RUTH E. Frr'rs, ALBIN DvoRAK.

